The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-474-7872, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-474-7872
Item Name
Valve,calibrated Flow
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Flow Control Device
DIAPHRAGM
Second End Relationship with First End
IDENTICAL
Body Style
STRAIGHT THRU
Face to Face Distance
7.594 INCHES NOMINAL IN
Temp Rating
160.0 FAHRENHEIT MAXIMUM DEGF
End Connection Quantity
2
First End Connection Type
BUTT WELD PIPE
First End Nominal Pipe Size Accommodated
1.335 INCHES IN
Material
COPPER ALLOY BODY
Material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Media for Which Designed
WATER
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-474-79125873-20SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-474-80265873-8SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-475-21075873-5SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-478-45235873-2SKPOSSIBLE MATCH
PARTS KIT,REGULATING VALVE,TEMPE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-478-45272352-1181ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-483-60112352-1261ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-483-64425873-10SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-493-89552352-1251ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-493-90735873-9SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-579-76502352-1201ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
8831-B FIG 2352-1311ACL
5/2Secondary reference
U.S. Government activity
8831-B
D/9Drawing number reference only
U.S. Government activity
2352-1311ACL
3/2Design control — primary reference
U.S. Government activity
2352-1311ACL 1.00IN
5/2Secondary reference
U.S. Government activity
Related Parts
4820-01-474-7912POSSIBLE MATCH
PARTS KIT,VALVE
5873-20SK
4820-01-474-8026POSSIBLE MATCH
PARTS KIT,VALVE
5873-8SK
4820-01-475-2107POSSIBLE MATCH
PARTS KIT,VALVE
5873-5SK
4820-01-478-4523POSSIBLE MATCH
PARTS KIT,REGULATING VALVE,TEMPE
5873-2SK
4820-01-478-4527POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1181ACL
4820-01-483-6011POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1261ACL
4820-01-483-6442POSSIBLE MATCH
PARTS KIT,VALVE
5873-10SK
4820-01-493-8955POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1251ACL
4820-01-493-9073POSSIBLE MATCH
PARTS KIT,VALVE
5873-9SK
4820-01-579-7650POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1201ACL
Frequently Asked Questions
What is NSN 4820-01-474-7872?
NSN 4820-01-474-7872 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-474-7872?
10 possible matches (shared part number, not a government interchangeability claim): 4820-01-474-7912, 4820-01-474-8026, 4820-01-475-2107. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-474-7872?
Key specifications for 4820-01-474-7872: Flow Control Device: DIAPHRAGM; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; Face to Face Distance: 7.594 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-474-7872 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.